qemu_oom_check() is a function which essentially says "if you pass me
a NULL pointer then print a message then abort()". On POSIX systems
the message includes strerror(errno); on Windows it includes the
GetLastError() error value printed as an integer.
Other than in the implementation of qemu_memalign(), we use this
function only in hw/usb/redirect.c, for three checks:
* on a call to usbredirparser_create()
* on a call to usberedirparser_serialize()
* on a call to malloc()
The usbredir library API functions make no guarantees that they will
set errno on errors, let alone that they might set the
Windows-specific GetLastError string. malloc() is documented as
setting errno, not GetLastError -- and in any case the only thing it
might set errno to is ENOMEM. So qemu_oom_check() isn't the right
thing for any of these. Replace them with straightforward
error-checking code. This will allow us to get rid of
qemu_oom_check().
Signed-off-by: Peter Maydell<peter.maydell@linaro.org>
---
I have left all of these errors as fatal, since that's what they
were previously. Possibly somebody with a better understanding
of the usbredir code might be able to make them theoretically
non-fatal, but we make malloc failures generally fatal anyway.
---
hw/usb/redirect.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)